Measure the cylinder taper first. That can be done with the pistons in place, since the majority of the wear happens within the first 2" or less of the top of the block. If there's more than about 5 thousandths of taper wear, a re-ring job will be pretty much a waste of time and money. Rebore the cylinders and install new oversize pistons. That gets into major overhaul territory.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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